How to debug a running C++ program in Linux?
- by skydoor
Hi
I have a question about debugging a running C++ program in Linux. If a programming is already running and can't be interrupted, how to do that.
I can find three ways, but I don't know too much about details, I am grateful if any one can elaborate it deeper.
1) we can use GDB by specifying the process ID
gdb -p PID
In this case, what's the difference between this and attach PID?
2) We can use pstat, however, I am using Ubuntu, no pstat, but only mpstat
it seems that mpstat does not provide too much information, and not so many options.
3) check the details information under directory ./proc
In this case, just go to the directory with the PID. However, should this be done mannually?
